I'd have to disagree there RBoG. It's not, especially on the islands the drinkable water isn't even from there, usually mineral water shipped there. All other water is salt water that isn't good for drinking, but is very clear. The islands, tho, are beautiful. My mom works on one of those, really want to go there this summer, hopefully i will.
This could go as advertising, haha, but if you want clear, fresh, mountain water springing, like, in front of you - come to the mountains in Bulgaria. Especially Pirin mountain (rated by foreigners, even most of whom i've talked to being from England - a few of them Evertonians too - as the second most beautiful mountain in Europe, after the Alps).
Anyway, on topic - last boss holiday i was on was exactly on those mountains. Good place that, been going there for the past 2 years now, as my dad and other relatives work there (Dobrinishte, near Bansko, which is more famous but around there the nature is atrocious cause they cut out all the trees to have ski slopes and stuff) and it doesn't cost me or him anything but the food/drinks.
If you've got facebook -
here's pictures from the Bezbog hut, which stands at 2236 meters, and is an hour away from the village (30 minutes drive to the lift, another 30 minutes with it to the top).